Metal joint.



F. KUSTERLEE.

APPLICATLON FILED ED J ULY 27'19I6- 1,214,043. Patented Jan. 30, 1917.

. integral joint.

"lll llTED @TAEg FATE FFTQFQ.

FRANK KUSTEBLEE, OF KENOSHA, XVISCQNSIN, ASSIGNGR TO THE SIMMONS MANUFAC- TUBING COMPANY, OF KENOSE-TA, WISCONSIN, A CORPORATIGN OF WISCONSIN.

METAL JOINT.

Application filed December 1, 1913, Serial No. 803,911.

T 0 (all whom it may concern.

Be it known that l, FRANK KUsrnnLEn, a citizen of the United States, residing in the city of Kenosha, county of Kenosha, and State of l i isconsin, have invented certain new and useful Improvements in Metal Joints, of which the following is a specification.

This invention relates to improvements in metal joints, and refers more particularly to the joints in the tubes of metal-beds or other furniture of like character.

Orcinarily, it is usual to connect together the head and foot of an ordinary iron or brass bed by means of two side rails which are provided at each end with a detachable joint connection, this connection consisting of a tapered member on the side-rail dropping into locking engagement with a suitably tapered slot provided in a block cast on the bed-post. This casting is made by clamping a suitable mold around the bedpost and providing a mold-cup within the hollow post registering with an aperture in the side of the post communicating with the outside mold. It is obvious that when the metal is poured into the mold, it will flow through the aperture in the post into the mold-cup, and as the cavity formed by the mold-cup is made considerably larger than the hole in the post, the casting will be rigidly connected to the post. The present invention relates particularly to improvements in the mold-cup for forming said The salient object of the present invention consists in providing a mold-cup of integral sheet-metal construction which will tightly fit into the post and be pressed up against the aperture in the post by means of the resiliency or spring-action of the mold-cup itself; and more generally to provide a mold cup of such character that it may be readily adapted to any shape of post, and which will be extremely simple and economical in construction.

In the drawings, Figure 1 represents a joint formed by one of my integral m0ldcups in connection with a circular postmember; Fig. 2 is a partial longitudinal section of the joint shown in Fig. 1; Fig. 3 is a section along the line 33 of Fig. 2; Fig. 4 is a mold-cup which I use in connection with a square post member in which the corner casting is applied in line with the diagonal Specification of Letters Patent.

Patented Jan. 30, 191W.

Renewed July 27, 1918. Serial No. 111,751.

of the post; Fig. is a horizontal section of a joint employing the mold-cup shown in F'g. 4; Fig. 6 is a view of a mold-cup also used in making a square post casting, but in this case the casting is applied at right angles to one of the sides of the square post member; and Fig. 7 is a sectional plan of a joint made with the mold-cup shown in Fig. 6.

In Fig. 1, 1 is a circular post member provided with a circular hole 2 over which fits, within the post, an integral mold-cup 3. l

is the corner casting, cast in position at the side of the post 1 and rigidly connected. therewith by means of the integral neck and head occupying the space formed by the aperture 2 and the cavity of the mold-cup 5.

The mold-cup, as will be seen from the drawings, is of one-piece construction, and consists of a single piece of sheet-metal formed up into a special shape fitting tightly within the circular post member and held therein during the casting operation by means of the spring pressure exerted against the inner wall of the post by its two rearwardly projecting arms or wings 6 and 7. The side of the mold-cup registering with the aperture is of course formed up in such a way as to provide a suitable mold cavity of a size necessary to make a suitable head around the aperture and within the post when the casting is poured. It will be seen that it is a very simple matter to insert my improved mold-cup and place it in register with the aperture, as all that is required is to slightly press the two wings together so that the device may enter the post, and then push the mold-cup into the post far enough to register with the hole, the spring pressure of the wings then holding it in that position.

In Fig. 4:, I show a mold-cup which embodies the same principles as the mold-cup used in the round post, but in this case it is made of the proper shape to be used in making a joint with a square post, as shown in Fig. 5; the mold cavity and the casting aperture being in this case located in the corner of the square post member.

Fig. 6 also shows a mold cup used in making a joint in connection with a square post member, but in this case the mold cavity and the casting aperture are located at the side of the post, and not in the corner thereof; such a joint being shown in Fig. 7.

I do not limit myself to the details of con- Copies of this patent may be obtained for struction shown except as specified in the appended claims.

' I claim 1. The combination of a hollow post member having an aperture in its side, a mold cup formed of resilient sheet metal having its rim in contact with the inner wall of the post and surrounding said aperture whereby the bowl of the cup forms a hollow cavity communicating by said aperture with the outside of the post, said cup having a flangelike rim around the bowl loosely fitting within said post and having at its sides remote from the aperture a pair of integral resilient sheet metal arms extending substantially from the rear edges of the flange, rearwardly converging toward each other out of contact with the inner sides of the post and with their rear ends resiliently engaging the inner wall of the posts remote from and opposite the aperture whereby the rim of the cup is pressed tightly intoengagement with the inner wall of the post around said aperture, and a filling cast within the cavity of said cup.

-2. The combination of a hollow'post having an aperture in its side, a mold-cup within said post fitting over said aperture and FRANK KUSTERLEE.

Witnesses:

J. H. CANTWELL, JOHN BURNS.

five cents each, by addressing the Gommissioner of Patents. Washington, D. 0."

provided'with a pair of resilient integral re- 7 

